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Portable jammer

Portable jammer Portable jammer and signal removal for cell phone, WiFi, and GPS signals Portable jammer, signal removal Portable Signal Jammer circuit 20M Radius. High Power Signal Jammer Portable powerful and portable solution to completely block a nearby cell phone,  WiFi, and GPS signals. Can be used around the world. Strong and effective, this portable […]

The four channel PMT controller board

Controller Circuit Board The four channel PMT controller board is a PIC microcontroller based device that communicates with a PC by USB as an HID device and with a PIC-based “hand unit” via PIC-to-PIC RS-232 protocol. These two external inputs (USB and RS-232) send strings to the PMT controller that: * Sets the four high […]

VCO circuit diagram

voltage controlled oscillator vco circuit diagram using lm358

Audio Amplifier Circuit using TDA2822

Audio Amplifier Circuit using TDA2822

PCB Solder Mask

PCB Solder Mask

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